NXP Semiconductors PTN5100ABSMP

Overview

PTN5100ABSMP from NXP Semiconductors is a single-port USB Type-C Power Delivery PHY and Protocol IC that implements the physical layer (BMC/4B5B/CRC), protocol layer (packet assembly/disassembly, retries, resets), and Type-C Configuration Channel interface for host or device platforms. It supports Provider (P), Consumer (C), and Dual-Role (P/C, C/P) operation, delivers up to 1 A VCONN switching with forward/reverse current protection, and operates from VDD (3.3 V ±10%) or directly from VBUS (up to 25 V) - enabling Dead Battery mode support in notebooks and Chromebooks.

For engineers reviewing the PTN5100ABSMP datasheet, PTN5100ABSMP pinout, PTN5100ABSMP application, or PTN5100ABSMP equivalent, key selection considerations include its HVQFN20 package, SPI/I2C slave interface configurability, register-programmable Type-C role (DFP/UFP/DRP), CC orientation detection via CC_ORIENT, and integrated VCONN switch with programmable current protection thresholds.

Technical Context

The PTN5100ABSMP integrates dedicated hardware for USB PD PHY functions - including Bi-phase Mark Coding (BMC) encoding/decoding, 4B5B symbol conversion, CRC generation/checking, and SOP*/SOP'-debug/SOP"-debug packet handling - offloading timing-critical tasks from the policy controller MCU. Its CC block autonomously manages Rp/Rd termination, plug orientation detection, and Debug/Accessory identification without MCU intervention during initial connect events.

It implements three open-drain FET enable outputs (EN_USBSRC, EN_USBFET1, EN_USBFET2) for controlling external PMOS power paths, and provides V_MCUPWR (up to 30 mA) to power the policy controller. The VCONN switch features patented soft-start, register-programmable forward current limit, and reverse current protection triggered by inductive cable-unplug transients - all active only when VCONN_IN is within 2.7–5.5 V.

Key Specifications

Pinout & Package

PTN5100ABSMP is housed in an HVQFN20 package (4 mm × 4 mm, 0.5 mm pitch) with exposed thermal pad requiring solder connection to PCB ground for electrical integrity and thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB-C PD PHY and protocol applications.

Compared with STUSB4500 and TUSB7320, PTN5100ABSMP offers true hardware-accelerated PD protocol offload, flexible role assignment (P/C/DRP), and unique VCONN reverse-current protection - making it optimal for high-reliability computing platforms where interoperability and cable robustness are non-negotiable.

Availability

PTN5100ABSMP is available at Aetrix Electronics and suitable for notebook PCs, USB-C docks, and Chromebook peripheral hubs requiring stable component supply, long-term lifecycle support, and full USB-IF compliance validation.

Supply support for PTN5100ABSMP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and consumer applications, with leadership in USB-C, NFC, and edge processing technologies.

The PTN5100ABSMP belongs to NXP's USB Type-C Power Delivery PHY and Protocol IC product line, engineered specifically for high-interoperability, low-latency USB-C port implementation in portable computing and docking systems.

FAQ

What USB Power Delivery specification versions does PTN5100ABSMP support?

PTN5100ABSMP fully supports USB PD 2.0 and USB Type-C 1.2 specifications, including all delta updates published through July 2017. It implements mandatory BMC encoding/decoding, 4B5B symbol conversion, CRC generation/checking, and SOP/SOP'/SOP"-debug packet handling - but does not support USB PD 3.0 or Programmable Power Supply (PPS) extensions.

Can PTN5100ABSMP operate without an external policy controller MCU?

No - PTN5100ABSMP is a PHY/protocol accelerator and requires an external MCU to run the PD Policy Engine and Device Policy Manager. It provides register-level control and status reporting via SPI or I2C, but does not embed firmware or decision logic. The PTN5100ABSMP must be paired with a discrete policy controller to achieve full USB-C PD functionality.

How does PTN5100ABSMP handle dead-battery operation in laptops?

PTN5100ABSMP supports dead-battery operation by drawing power directly from VBUS (up to 25 V) while using VIO for I/O logic. In this mode, it powers the external policy controller via V_MCUPWR (up to 30 mA), maintains CC detection, and implements UFP pull-down behavior - enabling the host to negotiate charging before the main battery or VDD rail is active.

What is the function of the CC_ORIENT pin on PTN5100ABSMP?

The CC_ORIENT pin on PTN5100ABSMP is a CMOS output that indicates USB-C cable plug orientation: LOW signifies normal insertion (CC1 active), HIGH signifies reversed insertion (CC2 active). Its state is invalid until the policy controller initializes PTN5100ABSMP post-power-on reset, after which it provides immediate, hardware-based orientation feedback without software polling.

Does PTN5100ABSMP include built-in ESD protection for CC pins?

PTN5100ABSMP provides 5.5 V absolute maximum rating on CC1 and CC2 pins but does not integrate sufficient ESD protection for USB-C cable discharge events. The datasheet explicitly requires external TVS diodes (e.g., PESD5V0S1USF or PESD5V0S1UL) on both CC lines to meet IEC 61000-4-2 Level 4 (8 kV contact) compliance - a mandatory design step for USB-IF certification.